Podcast
Questions and Answers
In a series circuit, how does adding more resistors affect the current?
In a series circuit, how does adding more resistors affect the current?
- Increase the current
- Reverse the current direction
- Keep the current the same
- Decrease the current (correct)
What is the relationship between the resistance of circuit 1 and circuit 3 in Figure 1?
What is the relationship between the resistance of circuit 1 and circuit 3 in Figure 1?
- No relationship between the resistances
- Half the resistance of circuit 3
- The same resistance as circuit 3
- Twice the resistance of circuit 3 (correct)
Which voltmeter reading will be the lowest among V1, V2, and V3 in Figure 1?
Which voltmeter reading will be the lowest among V1, V2, and V3 in Figure 1?
- V2
- V1 (correct)
- V3
- All will give the same reading
What does a higher reading on voltmeter V2 indicate in Figure 1?
What does a higher reading on voltmeter V2 indicate in Figure 1?
What was the purpose of the student's experiment with adding resistors in Figure 2?
What was the purpose of the student's experiment with adding resistors in Figure 2?
How does an increase in total resistance affect the current in a series circuit?
How does an increase in total resistance affect the current in a series circuit?
What is the frequency of the a.c. mains electricity supply?
What is the frequency of the a.c. mains electricity supply?
What is the power of the electric kettle?
What is the power of the electric kettle?
If 4000 coulombs of charge pass through the heating element in 100 seconds, what is the current flowing through the heating element and its unit?
If 4000 coulombs of charge pass through the heating element in 100 seconds, what is the current flowing through the heating element and its unit?
What happens to the potential difference across a heating element if its resistance increases in a series circuit?
What happens to the potential difference across a heating element if its resistance increases in a series circuit?
In a series circuit, what happens to the total voltage when more resistors are added?
In a series circuit, what happens to the total voltage when more resistors are added?
Which of the following statements is true for a series circuit with multiple resistors?
Which of the following statements is true for a series circuit with multiple resistors?
What does direct current mean in an electrical circuit?
What does direct current mean in an electrical circuit?
Which equation correctly links current, potential difference, and resistance?
Which equation correctly links current, potential difference, and resistance?
In a series circuit, how is the total potential difference distributed?
In a series circuit, how is the total potential difference distributed?
What is the relationship between power, current, and potential difference in an electrical circuit?
What is the relationship between power, current, and potential difference in an electrical circuit?
If the resistance in a series circuit increases, what happens to the total potential difference?
If the resistance in a series circuit increases, what happens to the total potential difference?
What effect does increasing the current in a circuit have on the power output of a battery?
What effect does increasing the current in a circuit have on the power output of a battery?
